The NFL has found that 11 of 12 of the New England Patriots game balls were inflated significantly less than the NFL requires, league sources involved and familiar with the investigation of Sunday’s AFC championship game told ESPN.

Assuming the initial inspection was done correctly and weather wasn’t a factor, the Patriots should be punished for deflating footballs, writes Mike Reiss. Story

The investigation found the footballs were underinflated by 2 pounds per square inch of air less than what’s required by NFL regulations during the Pats’ 45-7 victory over the Indianapolis Colts, according to sources.

“We are not commenting at this time,” said Greg Aiello, the NFL’s senior vice president of communications.

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Troy Vincent, the league’s senior executive vice president of football operations, told The Associated Press late Tuesday in response to this report that the “investigation is currently underway and we’re still awaiting findings.” He told ProFootballTalk.com earlier Tuesday that the NFL expected to wrap up its investigation in “two or three days.”